降水量变化与氮添加下荒漠草原土壤酶活性及其影响因素

朱湾湾, 王攀, 许艺馨, 李春环, 余海龙, 黄菊莹

Soil enzyme activities and their influencing factors in a desert steppe of northwestern China under changing precipitation regimes and nitrogen addition

ZHU Wan-Wan, WANG Pan, XU Yi-Xin, LI Chun-Huan, YU Hai-Long, HUANG Ju-Ying

表4 冗余分析中各环境因子的条件效应

Table 4 Conditional effects of environmental factors in redundancy analysis

指标 Index pH TP C:Pm C:Nm N:Ps MBC MBP C:Ps NH4+-N MBN NO3--N N:Pm SWC SOC TN EC AP C:Ns F 53.7 37.3 28.4 28.0 27.2 22.4 20.1 18.4 17.9 16.4 5.9 2.5 1.1 1.0 0.9 0.4 0.3 0.2 p 0.002 0.002 0.002 0.002 0.002 0.002 0.002 0.002 0.002 0.002 0.016 0.110 0.266 0.318 0.356 0.638 0.676 0.776